M-system MFTW120IX Notice Pour L'installation, L'utilisation Et L'entretien page 86

ADJUSTMENTS
• Always disconnect the appliance from
the electricity supply before making any
adjustment.
• All seal must be replaced by the technician
following any adjustment or regulation.
• The adjustment of the reduce rate (simmer)
must be undertaken only with
functioning on natural gas while in the case of
burners functioning on L.P.G, the screw must
be locked down fully (in clockwise direction).
• "Primary air adjustment" on hob gas burners
is unnecessary.
TAPS
All gas taps are male cone type with only one way of
passage. Adjustment of the "Reduced rate" position
as follows:
• Turn the burner on and place the knob on the
"Reduced rate" position (small flame).
• Remove the knob (A) of the tap which is attached by
simply applying pressure to the rod.
•• In the case of taps with flame failure device, the
adjustment screw (V) is over or on the side of the
stem (fig. 20).
• Check that the flame does not go out when the knob
is sharply switched from the "Full on" to "Reduced
rate" positions.
OVEN THERMOSTAT (fig.21)
Reduced rate adjustment should be carried out in
the following way:
• Remove the knob thermostat.
• Switch on the oven burner by turning the relative
knob to the Maximum position, then wait about 10
minutes.
• Slowly turn the knob back to the Minimum position
and, using a small screwdriver (C), turn screw (V) to
the right to lower the flame or to the left to increase
it. The flames must be short for an efficient Reduced
rate setting. They must be stable to prevent them
from accidentally going out and must be able to
stand up to normal oven door manoeuvres.
INSTRUCTIONS FOR THE INSTALLER
burners
C
25
GB
V
C
20
F
V
21